All our watches are AAA qualtiy replica;all the replica watches are not good at waterproof, we do not recommend swimming with them or taking showers with them.If you want your watch watchproof good,You can customize one form add some cost.The use of Replica watches some time not all the same as the real one,but it was like all other Conventional watch, if the watch you received have Some functions can not open, try search online or ask our customer service.